S
M
T
W
T
F
S
30
80°
66°
31
82°
69°
1
86°
69°
2
86°
68°
3
85°
67°
4
85°
61°
5
79°
61°
6
79°
63°
7
81°
66°
8
83°
67°
9
84°
65°
10
78°
66°
11
84°
65°
12
84°
66°
13
83°
66°
14
83°
65°
15
84°
66°
16
84°
65°
17
83°
66°
18
82°
60°
19
81°
59°
20
78°
55°
21
74°
55°
22
73°
61°
23
75°
59°
24
79°
55°
25
73°
54°
26
73°
55°
27
72°
54°
28
76°
57°
29
77°
59°
30
77°
59°
1
78°
60°
2
76°
58°
3
71°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Welcome
Welcome's September 2026 forecast shows daily high temperatures ranging from 71° to 86°, with overnight lows between 54° and 69°. The average high for September is 80° with an average low of 62°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how September weather will actually feel in Welcome. See also: October | November | December.
